JPH07108163B2 - Felling vehicle - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a felling vehicle equipped with a worktable for felling, and in particular, the worktable for felling moves up and down, left and right on the vehicle to remove tree trees. The present invention relates to a felling vehicle suitable for felling.

[0002]

2. Description of the Related Art Conventionally, as an apparatus of this kind, an opening / closing cutter attached to a front attachment of a working machine is described in Japanese Utility Model Laid-Open No. 63-140849. This cutter is detachably attached to a front attachment of a work machine, and a pair of left and right jaw-shaped opening / closing bodies can be opened and closed by a hydraulic cylinder.

Further, a combined working device in which a rotary blade and a chain saw are exchangeably mounted is described in Japanese Utility Model Publication No. 54-1668. This device is a device that is selectively used for pruning such as bush cutters and fruit trees by exchanging the rotary blade and the chainsaw.

Further, a pruning device provided with a chain is disclosed in Japanese Patent Laid-Open No. 62-44124, and an orchard management device in which a lifting platform is provided for a work carriage that moves along a rail is disclosed in Japanese Patent Laid-Open No. 1-30.
It is described in No. 9608.

[0005]

However, in order to increase the efficiency of logging work on street trees, it is necessary to increase the efficiency of worker movement and the efficiency of logging work of workers at the same time. However, since the opening / closing cutter is attached to the front attachment of the work machine, it requires a lot of time and labor for replacement work, and the work machine is also limited to a work machine equipped with a hydraulic arm, which is not suitable for cutting down road trees. Is inappropriate.

Further, the dual-purpose working device is convenient for removing the undergrowth, but in order to prepare a branch at a high place such as a roadside tree, a worker must lift a long rod to work, and work efficiency is improved. There was an inconvenience.

Further, in the pruning device provided with the chain saw, the chain saw is arranged at the tip of the swingable crane boom, and the crane boom is operated for pruning. There is an inconvenience that it is not possible to perform detailed work such as cutting down important twigs. Moreover, since the operator performs the operation from the ground, his or her line of sight is limited to a certain position, and there is the inconvenience that the tree cutting situation cannot be confirmed from various angles.

On the other hand, since the orchard management device uses a work carriage that moves along the rail, there is a disadvantage that it is limited to the route where the rail is arranged. Further, even if the work cart is used, the work efficiency of the felling work or the like does not change because the worker manually performs work on the work cart.

Therefore, the present invention was created in order to solve the above-mentioned problems, and in particular, it is possible to efficiently move many trees, such as street trees, so that the efficiency of movement of workers can be improved. The purpose of the present invention is to provide a felling vehicle capable of simultaneously increasing the efficiency of felling work.

[0010]

In order to achieve the above-mentioned object, the first means of the present invention is to provide a work lift 1 which is erected on a loading platform P1 of a vehicle P and which vertically expands and contracts. The lift 1 is equipped with a felling machine 2 for trimming the branches and leaves of a tree and a work platform 3 for operating a felling machine 2. The work lift 1 is mounted on a moving base 4 fixed to the loading platform P1 so as to be movable back and forth. The felling machine 2 has a scissors-shaped scissors cutting section 2A for cutting branches of trees and the like and a clipper-shaped sliding cutting section 2B. The cutting of the felling machine 2 is due to the provision of a felling machine operated by the driving force of the motor 5 via the worm gear 6.

[0011]

The present invention felling adoption vehicle moves to an arbitrary position depending on the vehicle. Then, a work platform 3 on which a worker is placed and a felling machine 2 for trimming the branches and leaves of a tree are used as a work lift 1.
Move up and down by.

Further, the working lift 1 moves back and forth along a moving base 4 fixed to the loading platform P1.

The felling machine 2 has a scissors cutting section 2A for cutting into scissors.
The branches and leaves of the tree are trimmed by the cutting and the sliding cutting portion 2B that cuts in a clipper shape.

In the felling machine 2, the driving force of the motor 5 operates via the worm gear 6.

[0015]

Embodiments of the present invention will be described below with reference to the drawings.

In the figure, reference numeral 1 is a work lift which is erected on a loading platform P1 of a vehicle P such as a truck and which vertically extends and contracts.
This work lift 1 has a felling machine 2 for trimming the branches and leaves of trees.
And a work table 3 for boarding a worker who operates the felling machine 2 (see FIG. 1). The working lift 1 in the illustrated example is a hydraulic cylinder that expands and contracts in three stages, and a felling machine 2 and a workbench 3 are attached to the upper portion of the working lift 1. At this time, instead of the hydraulic cylinder, a wire type sprocket operated by an electric expansion / contraction motor may be provided so as to be expandable and contractible.

The work lift 1 is mounted on a movable base 4 fixed to a loading platform P1 so as to be movable back and forth. In the figure, a roller 1A for supporting the work lift 1 is provided at the lower end of the work lift 1, and the roller 1A is fitted into the lateral groove 7A provided on the side surface of the rail 7 and slides (see FIG. 2).

The felling machine 2 has a scissors-shaped scissors cutting portion 2A for cutting branches of trees and the like and a clipper-shaped sliding cutting portion 2B. Then, these felling machines 2 are operated by the driving force of the motor 5 via the worm gear 6.

That is, in the scissors cutting portion 2A, the rotation of the motor 5 is transmitted to the worm gear 6, and the movable cylinder 6 is moved along the screw thread of the rotary shaft 6A extending from the shaft portion of the worm gear 6.
B reciprocates. The scissors cutting portion 2A provided at the end of the moving cylinder body 6B opens and closes as the moving cylinder body 6B reciprocates (see FIG. 3). At this time, a hydraulic cylinder may be used for the reciprocating movement of the moving cylinder body 6B. Reference numeral 5A shown in the drawing is a motor for rotating the scissors cutting portion 2A, and reference numeral 6C is a worm gear for rotating the scissors cutting portion 2A. Further, reference numeral 5B is a motor for swinging the scissors cutting portion 2A, and reference numeral 6D is a worm gear for swinging the scissors cutting portion 2A.

On the other hand, the sliding cutting portion 2B reciprocates in a direction opposite to each other by connecting a pair of left and right sprockets 8 and a cam 8A to a drive gear 7 which is rotated by a motor 5C and reciprocating two cutting teeth 2C in the form of clippers. It exercises (see Fig. 4). Reference numeral 5D indicates a motor for rotating the sliding cutting portion 2B, and reference numeral 7A indicates a worm gear for rotation. Further, reference numeral 5E is a motor for swinging the sliding cutting portion 2B, and reference numeral 7B is a worm gear for swinging the sliding cutting portion 2B (see FIG. 5). Further, reference numeral 9 is a hydraulic cylinder for expanding and contracting the scissors cutting portion 2A.

[0021]

The present invention achieves the original object by being configured as described above.

That is, the worker and the felling machine 2 are
By moving not only by the above, but also by moving up and down and left and right on the loading platform P1, it becomes possible to easily move in an extremely wide range as compared with a work truck or a crane truck that moves along a conventional rail. It was As a result, in particular, many trees such as street trees can be prepared very efficiently.

Further, since the workbench 3 on which the worker is placed and the felling machine 2 for trimming the branches and leaves of the tree are moved up and down by the work lift 1, proper felling can be performed from all angles according to the situation of the branches and leaves. Moreover, an extremely strong cutting force can be obtained.

As described above, according to the present invention, it is possible to improve the efficiency of movement of workers and the efficiency of logging work at the same time, and it is possible to prepare many trees such as street trees extremely efficiently. It has various beneficial effects.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of the present invention.

FIG. 2 is a side view showing a usage state of the present invention.

FIG. 3 is an enlarged view of a main part notch showing a scissors cutting part.

FIG. 4 is an enlarged view of a notch of a main portion showing a sliding cut portion.

FIG. 5 is a cutaway side view of a main portion showing a sliding cut portion.

[Explanation of symbols]

 1 Working Lift 1A Roller 2 Felling Machine 2A Scissors Cutting Part 2B Sliding Cutting Part 2C Cutting Tooth 3 Working Table 4 Moving Base 4A Hydraulic Cylinder 5 Motor 5A Motor 5B Motor 5C Motor 5D Motor 5E Motor 6 Worm Gear 6A Rotation Shaft 6B Moving Cylindrical body 6C Worm gear 6D Worm gear 7 Drive gear 7A Worm gear 7B Worm gear 8 Sprocket 8A Cam 9 Hydraulic cylinder

Claims (1)

[Claims] 1. A work lift, which is erected on a loading platform of a vehicle and expands and contracts vertically, is provided with a felling machine for trimming branches and leaves of the tree and a work bench for operating a felling machine. Mounted and the work lift is mounted on a moving base fixed to the loading platform.
It is mounted so that it can move back and forth, and the felling machine is equipped with worm gears.
Scissors-like scissor cutting part that is cut by the driving force of the motor
A felling adoption vehicle characterized by being provided with a clipper-like sliding cutting portion .